From Essential Rubber Formulary: Formulas for Practitioners

17.1 Solid Rubber Soling for Footwear

Ingredient

phr

  1. SS RMA 1X

70.00

  1. Butakon S 8551

30.00

  1. Sulfur

2.50

  1. Vulcafor F

1.50

  1. Zinc oxide

5.00

  1. Stearic acid

1.00

  1. Fortafil A.70

50.00

  1. Triethanolamine

1.00

  1. Coumarone-indene (CI) resin

3.00

  1. Nonox EXN

1.00

  1. Vulcafor fast brown color

1.00

Total

166.00

Note:

Cure for 30 minutes at 150 C.

Wallace plasticity = 45; Mooney scorch time (MS 1+3) at 120 C = 10 minutes; Tensile strength = 205 kg/cm2; Ultimate elongation = 500%; Modulus at 300% elongation = 70 kg/cm2; Shore hardness = 80 A.

17.2 Black Heel for Footwear

Ingredient

phr

  1. SS RMA 4

35.00

  1. Whole tire reclaim

130.00

  1. Pine tar

6.00

  1. Stearic acid

3.00

  1. Zinc oxide

5.00

  1. High abrasion furnace (HAF) black

40.00

  1. China clay

15.00

  1. Sulfur

3.00

  1. Accelerator MBTS

1.50

  1. Tetramethylthiuram disulfide (TMT)

0.10

Total

238.60

Note:

Cure for 10 15 minutes at 153 C.

Specific gravity = 1.30; Wallace plasticity = 35; Mooney scorch time (MS 1+3) at 120 C = 10 minutes; Tensile strength = 140 kg/cm2; Ultimate elongation = 450%; Modulus at 300% elongation = 68 kg/cm2; Shore hardness = 75 A.

Alter the accelerator system as required to match processing conditions. Reclaimed rubber is added on the basis of rubber hydrocarbon at 50%.

17.3 Brown Soling for Footwear

Ingredient

phr

  1. Smoked sheet

100.00

  1. Stearic acid

2.00

  1. CI resin

10.00

  1. Pine tar

1.00

  1. Antioxidant

1.00

  1. Zinc oxide

10.00

  1. Hard clay

175.00

  1. Magnesium carbonate

40.00

  1. Red oxide

5.00

  1. Sulfur

4.00

  1. MBTS

1.00

  1. TMT

0.50

Total

349.50

Note:

Cure for 10 15 minutes at 153 C.

Specific gravity = 1.40;

Copyright William Andrew Inc. 2007 under license agreement with Books24x7

Products & Services
Reserve Batteries
Reserve batteries are designed to retain their charge during long storage periods. The electrolyte is kept separate from the rest of battery to avoid self-discharge.
Rubber Adhesives and Sealants
Rubber adhesives and sealants are highly flexible, natural or synthetic materials that are used to join components or fill gaps between seams or on surfaces.
Footwear and Footwear Covers
Footwear and Footwear Covers includes protective shoes, boots, covers and other outer protective gear worn on the feet.
Casting Resins
Casting resins are pourable plastic or elastomer compounds that are used to cast parts, make molds, or form structures in place. They are mixed with a hardener, catalyst or activator and then poured into the sprue of open molds.
Epoxy Adhesives
Epoxy adhesives are chemical compounds for joining components. They require clean surfaces and are valued for their toughness and resistance to chemical and environmental damage.

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